US Bridges

Parkside Drive over Wapsinonoc Creek

Fair

Cedar County, Iowa · 0.4 Miles North of Inters · Structure no. 6470004P0000000

Built
1970
55 years old
Condition
Fair
inspected February 2025
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
400
2019 count
Owner
Federal
National Park Service

About this bridge

Parkside Drive over Wapsinonoc Creek is a concrete slab carrying Parkside Drive over Wapsinonoc Creek in Cedar County, Iowa. It was built in 1970, so it is 55 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 400 vehicles a day, roughly 4% of them trucks, projected to reach 480 by 2039. The structure is 30 ft (9.1 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesParkside Drive
CrossesWapsinonoc Creek
Location0.4 Miles North of Inters
RouteFederal Lands Road 10
StateIowa
Coordinates41.67003, -91.3455
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width52 ft (15.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2019)
Projected traffic480 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerNational Park Service
Maintained byNational Park Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$159,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Parkside Drive over Wapsinonoc Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Parkside Drive over Wapsinonoc Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2025.

How much traffic does Parkside Drive over Wapsinonoc Creek carry?

About 400 vehicles per day (2019 count), of which roughly 4% are trucks.

How long is Parkside Drive over Wapsinonoc Creek?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 52 ft wide.

Who owns Parkside Drive over Wapsinonoc Creek?

It is owned by the National Park Service.